Wierd question

[Chuck Rock]

Excellent, I will test.

Basically for the other guy, I had a mail server running MS and clamAV and
SpamAssassin. All free stuff, works nice mostly.

I purchased a Barracuda to "add" domains to with an extra fee for the
expensive commercial spam filter.

The final destination server is still the same. I just changed MX so only
the Barracuda was listed. 

What I've found through experience though, servers will continue to send
mail to the old MX record even though it doesn't exist. I still have servers
receiving messages for domains we haven't hosted for years.

To keep the spammers from bypassing the new Barracuda filter inserted in the
mail flow, I must make the final destination server ignore messages from all
other IP's for incoming mail destined for specific domains and only allow
them from the new spam filter device IP.

If any of you have a filter like this, and you haven't limited the old MX
server from receiving mail from just any IP for the domain, spam is probably
getting past your new filter.

Thanks,
Chuck

-----Original Message-----
From: mailscanner-bounces at lists.mailscanner.info
[mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Julian
Field
Sent: Monday, July 02, 2007 12:59 PM
To: MailScanner discussion
Subject: Re: Wierd question

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Hash: SHA1

You can do this very simply with a ruleset on the "Reject Messages" 
configuration option.

To: domain.com and From: 10.1.1.1 no
To: domain.com yes
FromOrTo: default no

That should do the trick I think.

Chuck Rock wrote:
> I have a weird question, but if it's something that can be answered with
MS,
> then I'd be very grateful.
>
> I have FreeBSD, MailScanner, ClamAV and Sendmail scanning incoming mail.
>
> I need to take messages to a specific domain and only allow them from a
> certain IP, another mail server. If they come from any other IP then they
> get rejected or deleted.
>
> Is this possible with a MailScanner ruleset?
>
> Thanks,
> Chuck
>
>
>   

Jules

- -- 
Julian Field MEng CITP
www.MailScanner.info
Buy the MailScanner book at www.MailScanner.info/store

MailScanner customisation, or any advanced system administration help?
Contact me at Jules at Jules.FM

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